People who regulary visit my blog (or RSS feed) know I like statistics … Some new insights into Microsoft Exchange and the projected growth (100 Million Mailboxes) for the coming 4 years :

… The Radicati Group, Inc.’s latest study, "Microsoft Exchange Server and Outlook Market Analysis, 2009-2013," provides an in-depth analysis of the market for Microsoft Exchange Server and Microsoft Outlook, including market share, installed base by version, as well as breakouts by business size, and region.

According to the report, Microsoft Exchange Server will have a total installed base of 241 million on-premises and hosted mailboxes by year-end 2009, and is expected to grow to a total of 347 million by 2013. This represents an average annual growth rate of 11%.

The report provides extensive breakout information for Microsoft Exchange Server penetration by version, business size and region in North America, EMEA, Asia/Pacific, and Rest of World. In addition, it also provides installed base and breakout information for Microsoft Outlook, including Outlook Web Access (OWA), and Hosted Microsoft Exchange Server.

Microsoft’s recently released Business Productivity Online Suite (BPOS) is also analyzed, and strengths and weaknesses are discussed for all current Microsoft Messaging and Collaboration products. …

Source: Radicati group